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ÄŒSD Class T 478.4
T478.4 is a class of diesel locomotives designed, manufactured and used in the former Czechoslovakia and now used in the Czech republic (ÄŒD Class 754) and Slovak republic (ZSSK Class 754). The locomotive is based on the T478.3 locomotive series. The most important difference was an electric train heating generator instead of the steam heating generator used on T478.3. To provide additional power needed for the heating generator, the prime mover power output was increased to 1470 kW, but the maximal power at the output of the traction generator remained the same as on Class T478.3. Another important new technology used on these locomotives was an electronic control system with an electrically controlled air brake valve and an automatic speed regulator, which was able to control not only the power output, but also the air brake. Their distinctive cab design has led to the nickname "Brejlovec" ("Goggles"). History In 1974, after the evaluation of the newly built T499.0 prot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Bo′Bo′
B-B and Bo-Bo are the Association of American Railroads (AAR) and British classifications of wheel arrangement for railway locomotives with four axles in two individual bogies. They are equivalent to the B′B′ and Bo′Bo′ classifications in the UIC system. The arrangement of two, two-axled, bogies is a common wheel arrangement for modern electric and diesel locomotives. Bo-Bo Bo′Bo′ (UIC) or Bo-Bo (Commonwealth) is the indication of a wheel arrangement for railway vehicles with four axles in two individual bogies, all driven by their own traction motors. It is a common wheel arrangement for modern electric and diesel-electric locomotives, as well as power cars in electric multiple units. Most early electric locomotives shared commonalities with the steam engines of their time. These features included side rods and frame mounted driving axles with leading and trailing axles. The long rigid wheelbase and the leading and trailing axles reduced cornering stability ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
